<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
	<title>Buses</title>

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	<link rel="icon" type="image/png" sizes="174x174" href="./favicon.png">

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	<script src="../build/Tone.js"></script>
	<script src="./js/tone-ui.js"></script>
	<script src="./js/components.js"></script>
</head>
<body>
	<tone-example label="Buses">
		<div slot="explanation">
			Buses make it easy to share effects across many instruments. <code>send</code>
			audio to a named bus from an instrument and then <code>receive</code> that
			channel on your effect. The gain values are all in decibels.
			<br><br>
			Docs on <a href="https://tonejs.github.io/docs/Channel.html#send">send</a> and 
			<a href="https://tonejs.github.io/docs/Channel.html#receive">receive</a>.
		</div>
		<div id="content">
			<tone-play-toggle></tone-play-toggle>
			<tone-slider label="Chorus Send" min="-60" max="6" value="-60" units="db"></tone-slider>
			<tone-slider label="Chebyshev Send" min="-60" max="6" value="-60" units="db"></tone-slider>
			<tone-slider label="Reverb Send" min="-60" max="6" value="-60" units="db"></tone-slider>
		</div>
	</tone-example>

	<script type="text/javascript">
		// the source
		const player = new Tone.Player({
			url: "https://tonejs.github.io/audio/berklee/femalevoice_oo_A4.mp3",
			loop: true,
		});

		// make some effects
		const chorus = new Tone.Chorus({
			wet: 1,
		}).toDestination().start();
		const chorusChannel = new Tone.Channel({ volume: -60 }).connect(chorus);
		chorusChannel.receive("chorus");

		const cheby = new Tone.Chebyshev(50).toDestination();
		const chebyChannel = new Tone.Channel({ volume: -60 }).connect(cheby);
		chebyChannel.receive("cheby");

		const reverb = new Tone.Reverb(3).toDestination();
		const reverbChannel = new Tone.Channel({ volume: -60 }).connect(reverb);
		reverbChannel.receive("reverb");

		// send the player to all of the channels
		const playerChannel = new Tone.Channel().toDestination();
		playerChannel.send("chorus");
		playerChannel.send("cheby");
		playerChannel.send("reverb");
		player.connect(playerChannel);

		drawer().add({
			tone: chorus,
		}).add({
			tone: reverb,
		}).add({
			tone: cheby,
		});
		document.querySelector("tone-play-toggle").addEventListener("start", () => player.start());
		document.querySelector("tone-play-toggle").addEventListener("stop", () => player.stop());
		// bind the interface
		document.querySelector("[label=\"Chorus Send\"]").addEventListener("input", e => {
			chorusChannel.volume.value = parseFloat(e.target.value);
		});
		document.querySelector("[label=\"Chebyshev Send\"]").addEventListener("input", e => {
			chebyChannel.volume.value = parseFloat(e.target.value);
		});
		document.querySelector("[label=\"Reverb Send\"]").addEventListener("input", e => {
			reverbChannel.volume.value = parseFloat(e.target.value);
		});
	</script>
</body>
</html>
